Apple macOS: An application may be able to gain elevated privileges
Priority LOW 36Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
This issue was addressed by removing the vulnerable code. This issue is fixed in macOS Big Sur 11.0.1. An application may be able to gain elevated privileges.
Why it matters now
EPSS 0.01166 67th percentileScored 2026-11-08
Fix Fixed macOS (Apple): 11.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA macOS (Apple) Fixed in 11.0
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apple macOS 11.0
45 records Highest priority Priority CRITICAL 2 CRITICAL, 1 HIGH, 4 MEDIUM, 38 LOW
Other records, highest priority first
- TI-2020-16987 Type confusion in Apple watchOSPriority CRITICAL 93
- TI-2020-16985 Out-of-bounds write in Apple watchOSPriority CRITICAL 93
- TI-2020-17004 Apple watchOS: A malicious application may be able to disclose kernel memoryPriority HIGH 82
Timeline
- 2026-10-02 Threatist record created from CVE-2020-27903
- 2026-10-03 Alias added: GHSA-qj3w-cxqj-5rxq
References
Advisory 4
More Apple Macos vulnerabilities
- TI-2026-46583 Improper authentication in Apple macOS KEVCVSS 3.1CRITICAL 9.8
- TI-2025-28008 Out-of-bounds write in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 10.0
- TI-2025-22441 Apple iOS and iPadOS: An attacker with arbitrary read and write capability may be able to… KEVCVSS 3.1CRITICAL 9.8
- TI-2025-22440 Memory corruption in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 9.8
- TI-2025-17951 Out-of-bounds write in Apple Safari KEVCVSS 3.1CRITICAL 10.0
- TI-2025-17847 Use after free in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 10.0
Sources
- CVE-2020-27903 · CVE Program
- CVE-2020-27903 · NVD
- FIRST EPSS
- GHSA-qj3w-cxqj-5rxq · GitHub Advisory Database · CC BY 4.0
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